Spitzer Infrared Nearby Galaxies Survey (SINGS) imaging of NGC 7331:: A panchromatic view of a ringed galaxy

被引：64
|
作者：
Regan, MW
Thornley, MD
Bendo, GJ
Draine, BT
Li, AG
Dale, DA
Engelbracht, CW
Kennicutt, RC
Armus, L
Calzetti, D
Gordon, KD
Helou, G
Hollenbach, DJ
Jarrett, TH
Kewley, LJ
Leitherer, C
Malhotra, S
Meyer, M
Misselt, KA
Morrison, JE
Murphy, EJ
Muzerolle, J
Rieke, GH
Rieke, MJ
Roussel, H
Smith, JDT
Walter, F
机构：
[1] Space Telescope Sci Inst, Baltimore, MD 21218 USA
[2] Bucknell Univ, Dept Phys, Lewisburg, PA 17837 USA
[3] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA
[4] Princeton Univ Observ, Princeton, NJ 08544 USA
[5] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA
[6] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA
[7] CALTECH, Pasadena, CA 91101 USA
[8] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
[9] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[10] Yale Univ, Dept Astron, New Haven, CT 06520 USA
[11] Natl Radio Astron Observ, Socorro, NM 87801 USA
来源：
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2004年 / 154卷 / 01期
关键词：
dust; extinction; galaxies : individual (NGC 7331); galaxies : ISM; galaxies : structure; infrared : galaxies;
D O I：
10.1086/423204
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Well-resolved infrared observations of nearby galaxies are of fundamental importance to the study of the processes that affect galactic evolution. In this paper we report on the first imaging results from the Spitzer Infrared Nearby Galaxies Survey ( SINGS) using observations of the Sb galaxy NGC 7331. We present images of NGC 7331 over a large range of wavelengths that allow us to compare the distributions of gas, stars, and dust in unprecedented detail. As an example of the types of information that the full SINGS will provide, we use three methods to determine that the interstellar medium mass in the ring of NGC 7331 is similar to5 x 10(9) M-circle dot. We also present the first images showing emission from small hot (similar to1000 K) dust grains, but we show that these dust grains contribute only a small fraction of the integrated 4.5 mum emission from NGC 7331.
引用
收藏
页码：204 / 210
页数：7
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